[CMake] Cmake 3.7.2 use external compiler

[Vliegenthart, Theon]

Hi,

We use for our complex project the Cmake 2.4 for vXworks compiler from windriver.
For the new project we want to update the cmake to 3.7.2, but vxworks is not yet supported any more.
Therefore we have written an alternative  toolchain file which is started with the following commando:

cmake.exe" -DCMAKE_TOOLCHAIN_FILE=S:\..\....vxworks.cmake.

In the file we define the compilers:

SET(CMAKE_C_COMPILER ${COM_path}/dcc.exe)
SET(CMAKE_CXX_COMPILER ${COM_path}/dplus.exe)

(Crosscompiler process)
Cmake test the ID of the compiler and do a separated test. Both tests lead to cmake errors in CMakeTestCCompiler.
We want to disable this test but variable as "CMAKE_C_COMPILER_WORKS" is not supported.
How can we solve this issue or the define an additional compiler?



Founded error:


"Start cmake (1)"
......
-- RTWDEVENV_DIR1  = c:/eqcp_reuse/EqCP/EqCP-dev/allPlatforms/matlab_include/RTW
_DevEnv
-- RTWDEVENV_DIR2  = c:/eqcp_reuse/EqCP/EqCP-dev/allPlatforms/matlab_include/RTW
_DevEnv/R2016a
-- EQCP_INCLUDE_DIR= c:/eqcp_reuse/EqCP/EqCP-dev/VxWorks6-smp-pcPentium/Debug/in
clude
-- EQCP_LIB_DIR    = c:/eqcp_reuse/EqCP/EqCP-dev/VxWorks6-smp-pcPentium/Debug/li
b
TC: Path for CXX compiler C:/WindRiver/diab/5.8.0.0/WIN32/bin/dplus.exe
TC: Build directory is:S:/S_Project/Stage/buildenv
CMake Error at C:/Program Files/CMake 3.7.2/share/cmake-3.7/Modules/CMakeDetermi
neCompilerId.cmake:506 (string):
  string begin index: 1 is out of range 0 - 0
Call Stack (most recent call first):
  C:/Program Files/CMake 3.7.2/share/cmake-3.7/Modules/CMakeDetermineCompilerId.
cmake:36 (CMAKE_DETERMINE_COMPILER_ID_CHECK)
  C:/Program Files/CMake 3.7.2/share/cmake-3.7/Modules/CMakeDetermineCCompiler.c
make:112 (CMAKE_DETERMINE_COMPILER_ID)
  CMakeLists.txt:143 (PROJECT)
CMake Error at C:/Program Files/CMake 3.7.2/share/cmake-3.7/Modules/CMakeDetermi
neCompilerId.cmake:514 (math):
  math cannot parse the expression: " * 16 + ": syntax error, unexpected
  exp_TIMES, expecting exp_OPENPARENT or exp_NUMBER (2)
Call Stack (most recent call first):
  C:/Program Files/CMake 3.7.2/share/cmake-3.7/Modules/CMakeDetermineCompilerId.
cmake:36 (CMAKE_DETERMINE_COMPILER_ID_CHECK)
  C:/Program Files/CMake 3.7.2/share/cmake-3.7/Modules/CMakeDetermineCCompiler.c
make:112 (CMAKE_DETERMINE_COMPILER_ID)
  CMakeLists.txt:143 (PROJECT)
CMake Error at C:/Program Files/CMake 3.7.2/share/cmake-3.7/Modules/CMakeDetermi
neCompilerId.cmake:506 (string):
  string begin index: 1 is out of range 0 - 0
Call Stack (most recent call first):
  C:/Program Files/CMake 3.7.2/share/cmake-3.7/Modules/CMakeDetermineCompilerId.
cmake:36 (CMAKE_DETERMINE_COMPILER_ID_CHECK)
  C:/Program Files/CMake 3.7.2/share/cmake-3.7/Modules/CMakeDetermineCCompiler.c
make:112 (CMAKE_DETERMINE_COMPILER_ID)
  CMakeLists.txt:143 (PROJECT)
CMake Error at C:/Program Files/CMake 3.7.2/share/cmake-3.7/Modules/CMakeDetermi
neCompilerId.cmake:514 (math):
  math cannot parse the expression: " * 16 + ": syntax error, unexpected
  exp_TIMES, expecting exp_OPENPARENT or exp_NUMBER (2)
Call Stack (most recent call first):
  C:/Program Files/CMake 3.7.2/share/cmake-3.7/Modules/CMakeDetermineCompilerId.
cmake:36 (CMAKE_DETERMINE_COMPILER_ID_CHECK)
  C:/Program Files/CMake 3.7.2/share/cmake-3.7/Modules/CMakeDetermineCCompiler.c
make:112 (CMAKE_DETERMINE_COMPILER_ID)
  CMakeLists.txt:143 (PROJECT)
CMake Error at C:/Program Files/CMake 3.7.2/share/cmake-3.7/Modules/CMakeDetermi
neCompilerId.cmake:506 (string):
  string begin index: 1 is out of range 0 - 0
Call Stack (most recent call first):
  C:/Program Files/CMake 3.7.2/share/cmake-3.7/Modules/CMakeDetermineCompilerId.
cmake:36 (CMAKE_DETERMINE_COMPILER_ID_CHECK)
  C:/Program Files/CMake 3.7.2/share/cmake-3.7/Modules/CMakeDetermineCCompiler.c
make:112 (CMAKE_DETERMINE_COMPILER_ID)
  CMakeLists.txt:143 (PROJECT)
CMake Error at C:/Program Files/CMake 3.7.2/share/cmake-3.7/Modules/CMakeDetermi
neCompilerId.cmake:514 (math):
  math cannot parse the expression: " * 16 + ": syntax error, unexpected
  exp_TIMES, expecting exp_OPENPARENT or exp_NUMBER (2)
Call Stack (most recent call first):
  C:/Program Files/CMake 3.7.2/share/cmake-3.7/Modules/CMakeDetermineCompilerId.
cmake:36 (CMAKE_DETERMINE_COMPILER_ID_CHECK)
  C:/Program Files/CMake 3.7.2/share/cmake-3.7/Modules/CMakeDetermineCCompiler.c
make:112 (CMAKE_DETERMINE_COMPILER_ID)
  CMakeLists.txt:143 (PROJECT)
-- The C compiler identification is unknown
-- The CXX compiler identification is unknown
-- Check for working C compiler: C:/WindRiver/diab/5.8.0.0/WIN32/bin/dcc.exe
-- Check for working C compiler: C:/WindRiver/diab/5.8.0.0/WIN32/bin/dcc.exe --
works
-- Detecting C compiler ABI info
TC: Path for CXX compiler C:/WindRiver/diab/5.8.0.0/WIN32/bin/dplus.exe
TC: Build directory is:
-- Detecting C compiler ABI info - failed
-- Check for working CXX compiler: C:/WindRiver/diab/5.8.0.0/WIN32/bin/dplus.exe
-- Check for working CXX compiler: C:/WindRiver/diab/5.8.0.0/WIN32/bin/dplus.exe
-- broken
CMake Error at C:/Program Files/CMake 3.7.2/share/cmake-3.7/Modules/CMakeTestCXX
Compiler.cmake:44 (message):
  The C++ compiler "C:/WindRiver/diab/5.8.0.0/WIN32/bin/dplus.exe" is not
  able to compile a simple test program.

  It fails with the following output:

   Change Dir: C:/BuildProjects/S_Project/proj_build/build/VxWorks6-smp-pcPentiu
m/Debug/CMakeFiles/CMakeTmp

  Run Build Command:"C:/eqcp_reuse/external/sh_from_cygwin/make.exe"
  "cmTC_3e0e3/fast"

  /bin/make -f CMakeFiles/cmTC_3e0e3.dir/build.make
  CMakeFiles/cmTC_3e0e3.dir/build

  make[1]: Entering directory
  `/cygdrive/c/BuildProjects/S_Project/proj_build/build/VxWorks6-smp-pcPentium/D
ebug/CMakeFiles/CMakeTmp'


  Building CXX object CMakeFiles/cmTC_3e0e3.dir/testCXXCompiler.cxx.obj

  C:/WindRiver/diab/5.8.0.0/WIN32/bin/dplus.exe -o
  CMakeFiles/cmTC_3e0e3.dir/testCXXCompiler.cxx.obj -c
  C:/BuildProjects/S_Project/proj_build/build/VxWorks6-smp-pcPentium/Debug/CMake
Files/CMakeTmp/testCXXCompiler.cxx


  Target Unknown.  Use the -t option or set a default target with dctrl -t

  make[1]: *** [CMakeFiles/cmTC_3e0e3.dir/testCXXCompiler.cxx.obj] Error 1

  make[1]: Leaving directory
  `/cygdrive/c/BuildProjects/S_Project/proj_build/build/VxWorks6-smp-pcPentium/D
ebug/CMakeFiles/CMakeTmp'


  make: *** [cmTC_3e0e3/fast] Error 2

  CMake will not be able to correctly generate this project.
Call Stack (most recent call first):
  CMakeLists.txt:143 (PROJECT)


-- Configuring incomplete, errors occurred!
See also "C:/BuildProjects/S_Project/proj_build/build/VxWorks6-smp-pcPentium/Deb
ug/CMakeFiles/CMakeOutput.log".
See also "C:/BuildProjects/S_Project/proj_build/build/VxWorks6-smp-pcPentium/Deb
ug/CMakeFiles/CMakeError.log".
Leaving generate-VxWorks6-smp-pcPentium-Debug.cmd
Press any key to continue . . .


Theon


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